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Foundry Sand Recycling


​The sand used in our casting process may be the road bed you drive on to get to one of our plants.
 
Our casting processes require large volumes of sand which is continually used, reconditioned and reused in the foundry. Sand shaken off of completed castings is recaptured and recycled in the process. Sand that can no longer be used for creating quality iron castings does not have to end up in a landfill. At ThyssenKrupp Waupaca, metal chunks and debris are screened out of the sand and it finds a new life in applications from road construction to agricultural use or even in concrete products and asphalt.
 
For more than two decades, we have worked in partnerships with state and local agencies (such as the Wisconsin Department of Transportation) to use foundry sand as highway subbase fill, general construction, agricultural use, geotechnical fill and other projects. In addition to keeping the sand out of landfills, it reduces the need to mine native materials elsewhere for the same project. 
 
The result: 70% (or more than 400,000 tons) of the byproducts generated from the foundry process are now incorporated into a multitude of local beneficial reuse projects including road and general construction, agricultural use, and geotechnical fill.